防爆电动机转子系统临界转速分析  

Analysis on Critical Speed of Explosion-Proof Motor Rotor System

作　　者：朱常权 朱常兴[1,2] 张洪喜[1,2] 王殿有 

机构地区：[1]佳木斯电机股份有限公司,黑龙江佳木斯154002 [2]国家防爆电机工程技术研究中心,黑龙江佳木斯154002

出　　处：《防爆电机》2015年第1期21-23,共3页Explosion-proof Electric Machine

摘　　要：采用传递矩阵法对YB2电动机转子系统进行了分析,详细地阐述了复杂转子结构的模型等效方法和数值处理过程,该转子的临界转速计算结果表明设计的转子一阶临界转速接近工作转速而可能引起共振,建议将该轴转子长度改短和增加轴颈,提高其一阶临界转速。This paper analyzes rotor system of YB2 series motors by using transfer matrix method and describes the model equivalent method and numerical processing procedure of complex structure in detail. The calculation result shows that the designed first-order critical speed of rotor can produce resonance if it is close to the running speed. It is suggested that the rotor length of shaft should be shortened and radial size of shaft neck should be increased to improve the first-order critical speed of rotor.

关 键 词：YB2电机 临界转速 传递矩阵法 

分 类 号：TM357[电气工程—电机]